The others in the Sazi series are Hunter's Moon and Moon's Web. It was good, but it is not one that I am going to collect. The books definitely need to be read in order or you cannot follow the story.

World-class entertainer and Sazi councilmember, Antoine Monier has taken his big cats all over the world without any trouble-until his latest trip to Stuttgart, where one of his tigers is stolen and killed. To Antoine's surprise, the German police have another tiger in custody-a tiger who is actually a lovely Turkish-American woman, Tahira Kuric. Like Antoine, Tahira is a shapeshifter, but of the Hayalet Kabile, the ghost tribe of shapeshifters. And despite their immediate attraction, Tahira wants nothing to do with Antoine-the Sazi are the enemy of the Hayalet Kabile. But Tahira doesn't have a choice, because she and Antoine have discovered that she is a fabled "power well," able to store magical energy from other shapeshifters-and something is hunting her, eager to use her powers for itself. Only if they can set aside their peoples' ancient rivalry and rely completely on each other-body and soul-can Tahira and Antoine save themselves and their people.

I think that you could still follow, but you would definitely understand the background more if you read the others first because he (the hero) talks about and to some of the characters introduced in the other books. And the hero in this book was a player in Moon's Web. Their other book, Touch of Evil, is the start of a new series though.